EP0506837B1 - Dispositif d'arret - Google Patents

Dispositif d'arret Download PDF

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Publication number
EP0506837B1
EP0506837B1 EP91902289A EP91902289A EP0506837B1 EP 0506837 B1 EP0506837 B1 EP 0506837B1 EP 91902289 A EP91902289 A EP 91902289A EP 91902289 A EP91902289 A EP 91902289A EP 0506837 B1 EP0506837 B1 EP 0506837B1
Authority
EP
European Patent Office
Prior art keywords
stopper
locking device
bore
retaining element
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91902289A
Other languages
German (de)
English (en)
Other versions
EP0506837A1 (fr
Inventor
Ludwig Prüss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP0506837A1 publication Critical patent/EP0506837A1/fr
Application granted granted Critical
Publication of EP0506837B1 publication Critical patent/EP0506837B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/11—Plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part

Definitions

  • the invention relates to a locking device according to the preamble of claim 1.
  • plugs are used which are designed as stops for a control piston which can be moved in a bore and which also seal the bore against the escape of hydraulic fluid.
  • Plugs are generally known, which are clearly defined by means of fixing means such as bolts, pins or snap rings even in the case of dynamically high loads with respect to the housing surrounding them.
  • a disadvantage of this type of stopper is the large number of individual parts and a high outlay in terms of production and assembly, in particular when removing the stopper.
  • the invention is based on the object of designing a locking device for a stopper of the type mentioned in such a way that the stopper can be easily installed and removed.
  • the stopper should be properly fixed even with high dynamic loads.
  • a locking device according to the invention can be realized particularly inexpensively in mass production if the stopper is made of injectable plastic and the housing accommodating the stopper is held from a die-cast material. All of the structural elements essential for the locking device can already be provided when the plug and housing are deformed, so that no machining is required. Through a hollow cylindrical design of the plug material savings can be achieved, which also enable economic advantages.
  • FIG. 1 a plug 1 of hollow cylindrical design, the closed end of which is designated 1.1.
  • the cylinder outer wall 1.2 of the stopper 1 is in sections against a wall of the bore 2, not shown here.
  • This is located in a housing 3, which can be part of a slide box of a fluid control, for example, and is designed here as a die-cast part.
  • a through opening 4, into which a holding element 5 engages, is cast into the housing 3 substantially perpendicular to the axis of the bore 2. This is on the outer cylinder wall 1.2 of the plug 1 protruding outward tongue-like and bendable in the direction of the outer cylinder wall 1.2 resilient.
  • the stopper 1 has a sealing lip 6 and an annular shoulder 7, which can be, for example, a stop for a control piston (not shown here) that can be moved in the bore 2.
  • a longitudinal groove 8 in the housing 3 are also a longitudinal groove 8 as far as the through opening 4 and stop surfaces 9.1 and 9.2 are cast in.
  • a support surface 10 of the holding element 5 lies essentially in contact with the surface and is therefore less susceptible to wear.
  • FIG. 2 shows side surfaces 11 and 12 of the holding element 5, which can be brought into contact with the walls 13 and 14 of the through opening 4 to secure the stopper 1 against rotation.
  • the game between the side surfaces 11, 12 and the walls 13, 14 is selected so that the holding element 5 can snap into the through opening 4 without problems.
  • the embodiment shown in the drawing is particularly easy to assemble.
  • the plug 1 is first inserted into the bore 2 so that the holding element 5 is aligned with the longitudinal groove 8. Then the plug 1 is sunk in the bore 2.
  • the holding element 5 is resiliently bent in the direction of the cylinder outer wall 1.2 until the supporting surface 10 of the holding element 5 has been moved past the stop surface 9 of the through bore 4. This insertion movement in the direction of arrow A is limited by the edge formed by the stop surface 9.2 and the bore 2.
  • the holding element 5, which is flared outwards, runs on this and the resiliently curved holding element 5 engages in the through opening 4.
  • the plug 1 is thus in the position shown in the drawing and is now clearly fixed both axially and radially in the bore 2 by the holding element 5. It should be particularly emphasized that the plug 1 can be inserted into the bore 2 by hand without additional assembly tools. In addition, the assembly process can also be automated with very little expenditure on equipment.
  • the plug 1 can also be removed again from the bore 2 with little effort.
  • the holding element 5 is to be pushed back in the direction of the cylinder outer wall 1.2 using a mandrel or pin-like tool through the through opening 4, at least to the extent that the holding element 5 can be moved into the longitudinal groove 8. So that is axial Fixation of the plug 1 in the hole 2 removed.
  • By slanting the mandrel-like or pin-like tool when the holding element 5 is pressed down, an axial movement against the arrow direction A is simultaneously effected. This makes it easier to remove the plug 1 from the bore 2.
  • the side flanks of the longitudinal groove 8 are aligned with the walls 13 and 14 of the through-opening 4, so that the holding element 5 for dismantling the plug 1 only up to the base of the longitudinal groove 8 must be pressed down.
  • FIG. 3 shows a plug 1 ', which is arranged here in a bore 2' of a housing 3 '. This is provided with directly cast through openings 4 'and 4 ⁇ , which engage as retaining elements 5' and 5 ⁇ designed noses, which are each provided with a front bevel 15.1 or 15.2 and a rear bevel 16.1 or 16.2.
  • the front bevels 15.1 and 15.2 include with the axis of rotation 17 of the plug 1 'expediently an angle of 55-65 °.
  • the rear bevels 16.1 and 16.2 are exaggerated for the sake of clarity and should enclose an angle of 87-89 ° with the axis of rotation 17.
  • the stopper 1 ' has a circumferential sealing lip 6 for sealing the bore 2' and an annular shoulder 7.
  • a polygon-like opening 18 is also provided in the stopper 1 ', into which a correspondingly shaped assembly tool for rotating the stopper 1' can be inserted.
  • An annular groove 23 extending between the inner sleeve 19 and the outer sleeve 20, the bottom 24 of which is tight all round, can accommodate, for example, a spring (not shown further here).
  • a spring not shown further here.
  • longitudinal grooves 8 'and 8 ⁇ are longitudinal grooves 8 'and 8 ⁇ (the latter not visible in this figure), which extend to the level of the lower edge of the through openings 4' and 4 ⁇ .
  • FIG. 4 shows part-ring-like grooves 25 and 26, through which the holding elements 5 'and 5' can be moved out of the longitudinal grooves 8 'and 8' to the through openings 4 'and 4' when the stopper 1 'Pressed correspondingly deep into the bore 2' and then rotated.
  • the stopper 1 ' With the help of a simple tool to be inserted into the opening 18, the stopper 1 'can thus be assembled by a sliding and a rotary movement and dismantled in the same way in reverse order.
  • the exemplary embodiment according to FIGS. 3 and 4 is also conceivable with one holding element or more than two holding elements.
  • the attachment of a rear bevel on the holding elements 5 'and 5 ⁇ has the advantage that they can still set against the arrow direction A when the plug 1 is loaded by a higher force.
  • the holding elements 5 'and 5 ⁇ are then full on the walls of the through openings 4' and 4 ⁇ , so that their stress is distributed over a larger area. This has a particularly positive effect on increasing the life of such a plug.
  • the essentially hollow cylindrical configuration results in considerable material savings for the mass production of the plugs according to the invention.
  • the wall thicknesses the plug 1 or 1 'dimensioned such that optimum flow conditions are achieved when injection molding a plug 1 or 1' made of plastic. No machining and therefore expensive machining is necessary to manufacture the locking device formed from the plug and housing.

Abstract

L'invention concerne un dispositif d'arrêt pour un tampon (1) au moins partiellement enfoncé dans l'alésage (2) d'un carter (3). Ce tampon présente, en vue de sa fixation radiale et axiale dans l'alésage (2), des dispositifs d'enclenchement qui prennent appui dans des évidements correspondants du carter (3).

Claims (18)

  1. Dispositif d'arrêt pour un bouchon (1; 1′) noyé au moins partiellement dans un alésage (2; 2′) aménagé dans un carter (3; 3′), bouchon sur lequel est conformé au moins un moyen d'encliquetage (5; 5′, 5˝) en forme de languette, faisant matériellement partie intégrante de celui-ci, qui s'engage derrière une paroi du carter (3; 3′) s'étendant transversalement par rapport à l'axe longitudinal (17) de l'alésage (2; 2′),
    caractérisé en ce que la paroi fait partie d'une ouverture d'accès (4; 4′, 4˝) orientée transversalement par rapport à l'axe longitudinal (17) de l'alésage (2; 2′), et en ce qu'un épaulement circonférentiel (7) est prévu à une extrémité borgne du bouchon (1; 1′), du côté obturant de façon étanche l'alésage (2; 2′).
  2. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que le bouchon (1; 1′) comporte au moins un moyen d'étanchéité configuré de façon particulière, qui, dans le sens du mouvement d'enfoncement du bouchon (1; 1′), est disposé devant le moyen d'encliquetage (5; 5′, 5˝).
  3. Dispositif d'arrêt selon la revendication 1 ou 2, caractérisé en ce que le bouchon (1; 1′) est pour l'essentiel un cylindre creux borgne.
  4. Dispositif d'arrêt selon l'une au moins des revendications 2 et 3, caractérisé en ce que le bouchon (1; 1′) et le moyen d'étanchéité sont formés d'un seul tenant de la même matière.
  5. Dispositif d'arrêt selon l'une au moins des revendications 1 à 4, caractérisé en ce que le bouchon (1; 1′) est réalisé en matière plastique pouvant être moulée par injection.
  6. Dispositif d'arrêt selon l'une au moins des revendications 1 à 5, caractérisé en ce que le moyen d'encliquetage fait partie intégrante d'un élément de maintien (5; 5′ et 5˝) assurant à la fois la fixation radiale et la fixation axiale.
  7. Dispositif d'arrêt selon l'une au moins des revendications 1 à 6, caractérisé en ce que le carter (3, 3′) est une pièce moulée, et en ce que l'ouverture d'accès (4; 4′ et 4˝) soutenant le moyen d'encliquetage est moulée en même temps que le carter (3; 3′).
  8. Dispositif d'arrêt selon l'une au moins des revendications 1 à 7, caractérisé en ce que le moyen d'encliquetage est conformé de manière à être élastiquement flexible.
  9. Dispositif d'arrêt selon la revendication 8, caractérisé en ce que l'élément de maintien (5) est conformé sur la paroi cylindrique extérieure (1.2) du bouchon (1) en saillant vers l'extérieur sous forme d'une languette, et est élastiquement flexible au moins en direction de la paroi cylindrique extérieure (1.2).
  10. Dispositif d'arrêt selon les revendications 8 ou 9, caractérisé en ce que le profil de section transversale de l'ouverture d'accès (4) est configuré, au moins dans la partie soutenant l'élément de maintien (5), de manière telle que l'élément de maintien (5) s'ajuste dans l'ouverture d'accès (4) avec un jeu de pivotement prédéfinissable.
  11. Dispositif d'arrêt selon les revendications 9 et 10, caractérisé en ce que l'extrémité libre (la face d'appui 10) de l'élément de maintien (5) en forme de languette s'appuie sur la paroi (9.1) de l'ouverture d'accès (4), en assurant un contact superficiel, pour effectuer la fixation axiale.
  12. Dispositif d'arrêt selon l'une au moins des revendications 1 à 11, caractérisé en ce qu'à l'intérieur du carter (3), l'alésage (2) comporte une rainure longitudinale moulée (8) s'étendant au moins jusqu'à l'ouverture d'accès (4), dans laquelle, lors de l'insertion du bouchon (1) dans l'alésage (2), l'élément de maintien (5) est replié de façon élastique et est guidé jusqu'à ce qu'il s'enclenche automatiquement dans l'ouverture d'accès (4), du fait des forces de rappel élastiques.
  13. Dispositif d'arrêt selon l'une au moins des revendications 1 à 7, caractérisé en ce que l'élément de maintien (5′, 5˝) est constitué essentiellement par un nez essentiellement indéformable, saillant vers l'extérieur, ménagé sur la paroi cylindrique extérieure du bouchon (1′).
  14. Dispositif d'arrêt selon la revendication 13, caractérisé en ce que, dans le sens de l'insertion du bouchon (1′), à la fois le bord avant et le bord arrière du nez présentent un chanfrein (15.1, 15.2; 16.1, 16.2) incliné vers l'arrière.
  15. Dispositif d'arrêt selon les revendications 13 ou 14, caractérisé en ce que le cylindre creux borgne du bouchon (1′) comporte une ouverture polygonale (18).
  16. Dispositif d'arrêt selon la revendication 15, caractérisé en ce que l'ouverture polygonale (18) est aménagée dans une douille (douille intérieure 19), qui est reliée à une paroi du cylindre creux (douille extérieure 20) par l'intermédiaire de liaisons sous forme d'âmes (nervures 22.1 à 22.6).
  17. Dispositif d'arrêt selon l'une au moins des revendications 13 à 16, caractérisé en ce que, dans le carter (3′), l'alésage (2′) comporte une rainure longitudinale moulée intégrée (8′, 8) s'étendant au moins jusqu'au niveau de l'ouverture d'accès 4˝) assurant le guidage de l'élément de maintien (5′; 5˝), la rainure étant disposée de façon angulairement décalée par rapport à l'ouverture d'accès et reliée à celle-ci par l'intermédiaire d'une rainure moulée intégrée (25, 26) réalisée au moins en forme d'anneau partiel.
  18. Dispositif d'arrêt selon l'une au moins des revendications 1 à 17, caractérisé en ce qu'au niveau de l'extrémité borgne (1.1) du cylindre creux, une lèvre d'étanchéité circonférentielle (6) est agencée sur le bouchon (1; 1′).
EP91902289A 1989-12-22 1990-12-20 Dispositif d'arret Expired - Lifetime EP0506837B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3942526 1989-12-22
DE3942526 1989-12-22
PCT/EP1990/002275 WO1991010071A1 (fr) 1989-12-22 1990-12-20 Dispositif d'arret

Publications (2)

Publication Number Publication Date
EP0506837A1 EP0506837A1 (fr) 1992-10-07
EP0506837B1 true EP0506837B1 (fr) 1995-06-07

Family

ID=6396171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91902289A Expired - Lifetime EP0506837B1 (fr) 1989-12-22 1990-12-20 Dispositif d'arret

Country Status (6)

Country Link
US (1) US5435455A (fr)
EP (1) EP0506837B1 (fr)
JP (1) JP2975430B2 (fr)
DE (1) DE59009217D1 (fr)
ES (1) ES2073734T3 (fr)
WO (1) WO1991010071A1 (fr)

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DE4415341A1 (de) * 1994-05-02 1995-11-09 Teves Gmbh Alfred Verschlußvorrichtung zum Verschließen von Druckmittel führenden Kanälen in einem Gehäuse
EP0847257B1 (fr) * 1994-12-16 2003-07-09 Exactech, Inc. Capsule de fermeture de trous pour les implants de protheses
FR2774221B1 (fr) 1998-01-27 2000-04-14 Legrand France Boitier a encastrer dans une quelconque paroi, notamment pour appareil electrique
US6099299A (en) * 1999-12-13 2000-08-08 Raymond; Lynn Support attachment and cigarette lighter safety device
DE20315709U1 (de) * 2003-10-09 2004-07-22 Hydrotec Technologies Gmbh & Co. Kg Deckel einer Schachtabdeckung sowie Schachtabdeckung
US20050161463A1 (en) * 2004-01-27 2005-07-28 Litchman Michael J. Closure element for tubular members
US7296730B2 (en) * 2004-03-16 2007-11-20 Erdie End Caps, Llc Shipping container
US7909236B2 (en) * 2004-03-16 2011-03-22 Erdie End Caps, Llc End caps for tubes and shipping containers formed therefrom
JP2006144947A (ja) * 2004-11-22 2006-06-08 Toyo Valve Co Ltd バタフライバルブ
JP5339977B2 (ja) * 2009-03-16 2013-11-13 不二ラテックス株式会社 ショックアブソーバ
JP2013210037A (ja) * 2012-03-30 2013-10-10 Takiron Co Ltd 内側部材と外側部材の固定構造
US9528345B2 (en) * 2013-02-13 2016-12-27 Weatherford Technology Holdings, Llc Hydraulic communication device
US20180370697A1 (en) * 2017-06-23 2018-12-27 Jared Koett Closed container system
JP2021085438A (ja) * 2019-11-26 2021-06-03 株式会社荏原製作所 栓部材
KR20230143494A (ko) * 2022-04-05 2023-10-12 주식회사 삼에스코리아 웨이퍼 수납용기 및 그에 사용되는 캡 조립체

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US3385466A (en) * 1964-09-29 1968-05-28 Westinghouse Air Brake Co Means for closing core pin holes
US3893487A (en) * 1973-12-26 1975-07-08 Caterpillar Tractor Co High pressure hydraulic fitting
DE3446410A1 (de) * 1984-12-20 1986-06-26 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover Betaetigungseinrichtung fuer ventile
DE3535210A1 (de) * 1985-10-02 1987-04-16 United Carr Gmbh Trw Halteduebel
IT1227141B (it) * 1987-12-23 1991-03-19 Antonio Montanari Tappo provvisorio per condotti idraulici e fluidici.
FR2640703B1 (fr) * 1988-12-16 1991-02-08 Legris Sa Dispositif de fixation d'un element destine a traverser une cloison

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Title
Feinmechanische Bauelemente, Prof. Dr.-Ing. Siegfried Hildebrand, 3. Auflage, Carl Hanser Verlag München Wien 1978, Seiten 243, 244 *

Also Published As

Publication number Publication date
ES2073734T3 (es) 1995-08-16
WO1991010071A1 (fr) 1991-07-11
US5435455A (en) 1995-07-25
JPH05503983A (ja) 1993-06-24
JP2975430B2 (ja) 1999-11-10
DE59009217D1 (de) 1995-07-13
EP0506837A1 (fr) 1992-10-07

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